Konferenzpaper
Autorenliste: Kaskulov, M.; Mosel, U.
Erschienen in: The 8th International Workshop on the Physics of Excited Nucleons
Herausgeberliste: Burkert, V.
Jahr der Veröffentlichung: 2012
Seiten: 130-135
ISBN: 978-0-7354-1018-3
DOI Link: https://doi.org/10.1063/1.3701201
Konferenz: 8th International Workshop on the Physics of Excited Nucleons (NSTAR 2011)
Serientitel: AIP conference proceedings
Serienzählung: 1432
Abstract:
QCD-based scaling arguments predict the predominance of longitudinal over transverse electroproduction of pions by terms ∝ Q2. However, data from JLAB, Cornell and DESY, covering a wide kinematical range 1 < Q2 < 11GeV2 and 2GeV < W < 4GeV, do not show this expected behavior. At the same time standard descriptions of pion-electroproduction on nucleons have given a very good description of the longitudinal components of the cross sections. However, these very same models have failed grossly in describing the transverse component. We discuss here a common solution to these two problems by considering the contributions of high-lying (W > 2 GeV) nucleon resonances to pion production. The coupling strengths and form factors are obtained through hadron-parton duality. We show that an excellent description of data in a wide range of electron energies and four-momentum transfers can be obtained in such a model.
Zitierstile
Harvard-Zitierstil: Kaskulov, M. and Mosel, U. (2012) Resonance-parton duality and the transverse response of nucleons, in Burkert, V. (ed.) The 8th International Workshop on the Physics of Excited Nucleons. Melville, NY: American Institute of Physics. pp. 130-135. https://doi.org/10.1063/1.3701201
APA-Zitierstil: Kaskulov, M., & Mosel, U. (2012). Resonance-parton duality and the transverse response of nucleons. In Burkert, V. (Ed.), The 8th International Workshop on the Physics of Excited Nucleons. (pp. 130-135). American Institute of Physics. https://doi.org/10.1063/1.3701201
